Silica supported ammonium dihydrogen phosphate (NH4H2PO4/SiO2):A mild,reusable and highly efficient heterogeneous catalyst for the synthesis of 14-aryl-14-H-dibenzo[a,j]xanthenes期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

*Silica supported ammonium dihydrogen phosphate (NH₄H₂PO₄/SiO₂):A mild,reusable and highly efficient heterogeneous catalyst for the synthesis of 14-aryl-14-H-dibenzo[a,j]xanthenes*

Authors:	Shahnaz Rostamizadeha Ali Mohammad Amania Gholam Hossein Mahdavinia Nasrin Shadjoua

Affiliation:	a Department of Chemistry, K.N. Toosi University of Technology, and P.O. Box 15875-4416 Tehran, Iran;b Department of Chemistry, Islamic Azad University-Marvdasht Branch, Marvdasht, Iran

Abstract:	Silica supported ammonium dihydrogen phosphate (NH₄H₂PO₄/SiO₂) is found to be a recyclable heterogeneous catalyst for a rapid and efficient synthesis of various aryl-14-H-dibenzo[a,j]xanthenes with excellent yields under solvent-free conditions. The present methodology offers several advantages such as excellent yields, simple procedure, short reaction times and milder conditions.

Keywords:	Xanthenes Heterogeneous catalyst Silica supported ammonium dihydrogen phosphate
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